PER, PBR, Forward PER

Today, we can easily check stock prices using our smartphones. One company's stock might trade at $5 per share, while another company's stock might trade at $100 per share. Does that mean the $5 stock is cheaper than the $100 stock? Not necessarily. To understand whether a stock is reasonably priced, we need to look beyond its share price and consider how much money the company earns and what assets it owns. Investors often use two financial ratios for this purpose: PER and PBR. Another ratio, called Forward PER, uses estimates of a company's future earnings. What do these three ratios tell us? Let's begin with PER. PER stands for Price-to-Earnings Ratio, commonly written as P/E ratio in the United States. It measures how much investors are paying for a company's earnings. To understand this idea, imagine a fictional company that operates a chain of bakeries. Suppose the company has issued 100,000 shares of stock and earned $500,000 in net income over the past year. Net income is the money left after subtracting expenses such as ingredients, employee wages, rent, and taxes from the company's revenue. If we divide the company's $500,000 in net income by its 100,000 shares, we get $5 per share. This amount is called Earnings Per Share, or EPS. It represents the portion of the company's earnings attributable to each share of stock. Now suppose the company's stock is trading at $50 per share. If we divide the $50 stock price by the $5 earnings per share, we get 10. The company's P/E ratio is 10. A P/E ratio of 10 means investors are paying 10 times the company's annual earnings per share to own its stock. We can also look at the entire company. With 100,000 shares trading at $50 each, the company's total market value, known as its market capitalization, is $5 million. Dividing that amount by its annual net income of $500,000 gives us the same P/E ratio of 10. Does this mean a stock with a lower P/E ratio is always a better investment? Not necessarily. Imagine two companies. One has a P/E ratio of 5, while the other has a P/E ratio of 30. Based on these numbers alone, the first company's stock might appear relatively inexpensive. However, investors may have very different expectations about the two companies' futures. The company with a P/E ratio of 5 might be expected to experience declining profits. Meanwhile, the company with a P/E ratio of 30 might be expected to grow its earnings significantly. Investors may be willing to pay a higher price because they believe the second company will earn much more money in the future. Of course, a high P/E ratio does not guarantee future growth. If a company fails to meet investors' expectations, its stock price may fall. A company's P/E ratio can also appear unusually low when earnings temporarily increase. If a company earns very little money or reports a loss, the ratio may be difficult to interpret or not meaningful. For these reasons, investors often compare a company's P/E ratio with those of other companies in the same industry. They also examine its growth prospects and how stable its earnings have been. Now let's look at PBR. PBR stands for Price-to-Book Ratio, more commonly called the Price-to-Book or P/B ratio in the United States. It compares a company's stock price with the value of its net assets recorded on its balance sheet. Companies own different kinds of assets. Our fictional bakery company might own buildings, ovens, refrigerators, and cash. However, it might also owe money to banks, suppliers, or other creditors. The difference between a company's assets and its liabilities is called shareholders' equity, or book value. Suppose our bakery company has $10 million in assets and $7.5 million in liabilities. After subtracting its liabilities, the company has $2.5 million in shareholders' equity. If we divide that $2.5 million by the company's 100,000 shares, we get $25 per share. This is called Book Value Per Share, or BVPS. Since the company's stock is trading at $50, we divide the stock price by its book value per share of $25. The result is 2, meaning the company's P/B ratio is 2. A P/B ratio of 2 means investors are paying twice the company's accounting book value to own its shares. If a company's P/B ratio is 1, its market price per share equals its book value per share. If its P/B ratio is 0.5, its stock is trading at half its book value per share. Does that mean a stock with a P/B ratio below 1 is automatically a bargain? Not necessarily. The value of a company's assets on its balance sheet may differ from the amount those assets could actually be sold for. A company might also continue losing money, reducing its shareholders' equity over time. On the other hand, a business with valuable technology, software, or a strong brand may generate significant profits even if its recorded book value is relatively small. This is why the P/B ratio can be more useful for certain types of companies than others. It may be particularly relevant when analyzing businesses where financial or physical assets play an important role, such as banks or some manufacturing companies. It may be less informative when analyzing businesses whose value depends heavily on intellectual property, technology, or brands. At this point, we can see an important difference between P/E and P/B ratios. The P/E ratio compares a company's stock price with its earnings, while the P/B ratio compares its stock price with its book value. However, investors are not only interested in what a company has earned in the past. They also want to know how much money it might earn in the future. This brings us to Forward PER. Forward PER, more commonly called the Forward P/E ratio in the United States, measures a company's current stock price relative to its expected future earnings. It typically uses estimated earnings per share for the next 12 months or the next fiscal year. Let's return to our bakery company. Its stock is currently trading at $50, and its earnings per share over the past year were $5. Therefore, its P/E ratio based on past earnings is 10. Now imagine the company plans to open several new bakeries and expects its sales to increase. Analysts estimate that its earnings per share will rise to $10 next year. If we divide the current stock price of $50 by the expected earnings per share of $10, we get 5. The company's Forward P/E ratio is 5. Assuming the stock price stays the same, the Forward P/E ratio would be half the historical P/E ratio because the company's expected earnings are twice as high. This helps explain why investors sometimes become interested in companies that have relatively high current P/E ratios. If earnings are expected to grow rapidly, the stock may appear less expensive when measured against future profits. But there is an important problem with this approach. Future earnings have not happened yet. Our bakery company might open new locations but attract fewer customers than expected. The price of flour might increase, or employee wages might rise. On the other hand, the company might perform better than expected and earn even more money. As a result, a Forward P/E ratio depends heavily on the accuracy of earnings forecasts. Different analysts may also make different predictions, leading to different Forward P/E ratios for the same company. Now let's consider all three ratios together. The P/E ratio tells us how a stock is priced relative to a company's current or historical earnings. The P/B ratio tells us how a stock is priced relative to the company's recorded net assets. The Forward P/E ratio tells us how the current stock price compares with the earnings the company is expected to generate in the future. However, none of these ratios can tell us exactly what a stock should be worth. A low P/E ratio does not guarantee that a stock price will rise. A low P/B ratio does not necessarily mean investors are buying valuable assets at a discount. A low Forward P/E ratio may also be misleading if the company fails to achieve its expected earnings. It is also important to understand that a P/E ratio of 10 does not mean investors will automatically recover their investment in exactly 10 years. Companies do not distribute all their earnings to shareholders, and both earnings and stock prices can change over time. Ultimately, P/E, P/B, and Forward P/E ratios are different tools for understanding stock prices. They help investors examine how the market values a company's profits, assets, and expected future growth. The important thing is not to use a single number to decide whether a stock is good or bad. Investors also need to understand what the company does, how it makes money, how much debt it has, and what changes might affect its future. A stock price may appear to be just a number on a screen, but behind that number are a real business, its financial condition, and people's expectations about its future. P/E, P/B, and Forward P/E ratios help us better understand what that number means.